Direct flights to Seoul | Cheapflights

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Best

Last-minute

One-way

Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 11 April 2026.

Thu 9/701:10

BKK

-

ICN

Nonstop5h 45m

Multiple Airlines

Tue 18/812:10

ICN

-

BKK

Nonstop5h 50m

Multiple Airlines

Deal found 9/4฿7,476

Thu 11/601:10

BKK

-

ICN

Nonstop5h 45m

Multiple Airlines

Fri 19/617:15

ICN

-

BKK

Nonstop5h 55m

Multiple Airlines

Deal found 10/4฿7,765

Thu 2/701:10

BKK

-

ICN

Nonstop5h 45m

Jeju Air

Mon 20/720:05

ICN

-

BKK

Nonstop6h 05m

Jeju Air

Deal found 10/4฿7,925

Thu 9/701:10

BKK

-

ICN

Nonstop5h 45m

Multiple Airlines

Mon 13/719:55

ICN

-

BKK

Nonstop5h 50m

Multiple Airlines

Deal found 10/4฿7,957

Thu 2/701:10

BKK

-

ICN

Nonstop5h 45m

Jeju Air

Sat 4/720:05

ICN

-

BKK

Nonstop6h 05m

Jeju Air

Deal found 11/4฿8,118

Sun 7/602:45

DMK

-

ICN

Nonstop5h 50m

Thai AirAsia

Sat 13/612:05

ICN

-

DMK

Nonstop5h 45m

Thai AirAsia

Deal found 7/4฿8,310

Thu 9/701:10

BKK

-

ICN

Nonstop5h 45m

Jeju Air

Tue 14/720:05

ICN

-

BKK

Nonstop6h 05m

Jeju Air

Deal found 11/4฿8,406

Sun 7/602:45

DMK

-

ICN

Nonstop5h 50m

Thai AirAsia

Tue 9/612:05

ICN

-

DMK

Nonstop5h 45m

Thai AirAsia

Deal found 7/4฿8,471

Wed 30/903:15

DMK

-

ICN

Nonstop5h 40m

Thai Lion Air

Sun 4/1013:30

ICN

-

DMK

Nonstop5h 40m

Thai Lion Air

Deal found 6/4฿8,503

Wed 1/702:45

DMK

-

ICN

Nonstop5h 50m

Thai AirAsia

Sun 5/712:05

ICN

-

DMK

Nonstop5h 45m

Thai AirAsia

Deal found 9/4฿8,535

Tue 21/403:15

DMK

-

ICN

Nonstop5h 40m

Multiple Airlines

Sun 26/411:55

ICN

-

DMK

Nonstop5h 40m

Multiple Airlines

Deal found 8/4฿8,567

Wed 1/702:45

DMK

-

ICN

Nonstop5h 50m

Thai AirAsia

Sat 4/712:05

ICN

-

DMK

Nonstop5h 45m

Thai AirAsia

Deal found 7/4฿8,599

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul with our price prediction graph.

TH1-SEL

DMK-ICN

BKK-ICN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sun 7/6

02:45-10:35

Nonstop5h 50m

Incheon Intl

Sat 13/6

12:05-15:50

Nonstop5h 45m

฿8,310

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Tue 14/7

02:45-10:35

Nonstop5h 50m

Incheon Intl

Wed 9/9

12:05-15:50

Nonstop5h 45m

฿9,048

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 15/6

22:45-06:15

Nonstop5h 30m

Incheon Intl

Fri 19/6

17:15-21:10

Nonstop5h 55m

฿10,107

Fastest return journey

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 22/4

03:15-10:55

Nonstop5h 40m

Incheon Intl

Tue 28/4

13:30-17:10

Nonstop5h 40m

฿10,428

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Thu 1/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Sat 10/10

12:05-15:50

Nonstop5h 45m

฿10,556

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Thu 21/5

22:45-06:15

Nonstop5h 30m

Incheon Intl

Fri 5/6

17:15-21:10

Nonstop5h 55m

฿10,588

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sun 7/6

02:45-10:35

Nonstop5h 50m

Incheon Intl

Thu 18/6

12:05-15:50

Nonstop5h 45m

฿10,749

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Thu 10/9

02:45-10:35

Nonstop5h 50m

Incheon Intl

Thu 17/9

12:05-15:50

Nonstop5h 45m

฿10,909

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Thu 20/8

02:45-10:35

Nonstop5h 50m

Incheon Intl

Mon 14/9

12:05-15:50

Nonstop5h 45m

฿10,941

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sun 21/6

02:45-10:35

Nonstop5h 50m

Incheon Intl

Tue 7/7

12:05-15:50

Nonstop5h 45m

฿10,941

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 37 resultsSorted by cheapest first

1

2

3

4

Reviews of airlines flying non-stop to Seoul

Check out reviews from past customers who have flown Korean Air,AIR PREMIA, andThai Airways to South Korea to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

8.4

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

AIR PREMIA

8.2

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

7.8

Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Thai Vietjet Air

6.6

Okay

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQ about direct flights to Seoul

How much are direct flights to Seoul?
On average, a one-way direct flight to Seoul will cost users approximately ฿20,999. If you're looking for a direct return flight to Seoul, you can expect to pay around ฿18,424.
Which airlines fly direct to Seoul?
At the moment, Thai AirAsia X, Thai Vietjet Air, Thai Airways, AIR PREMIA, Korean Air, T'way Air, Air Busan, Jeju Air, Eastar Jet, Asiana Airlines offer direct flights to Seoul. Thai AirAsia X is currently the most popular airline that flies direct to Seoul.
What is the best time of year to fly direct to Seoul?
If you're seeking the lowest price on a direct flight to Seoul, April is worth consideration, as prices are usually at their lowest, on average. February may be most appealing to users looking for the quietest time to visit Seoul, when demand is typically at its lowest.
What is the most popular direct flight origin to Seoul?
Currently, the most popular direct flight origin to Seoul is Bangkok Suvarnabhumi Airport. A return direct flight from Bangkok Suvarnabhumi Airport to Seoul typically costs around ฿28,019.

See more FAQs

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